Internal heat rotary furnace with energy-saving structure

Abstract

The utility model provides an internal heat rotary furnace with an energy-saving structure, which comprises a fuel gas supply component and an internal heat rotary furnace body, the fuel gas supply component is arranged on the left side of the internal heat rotary furnace body, and the internal heat rotary furnace body comprises a furnace body I, a furnace body II and a furnace body III, compared with the prior art, the internal heat rotary furnace has the advantages that the heat preservation cavities are formed in the outer sides of the first furnace body, the second furnace body and the third furnace body, when the whole internal heat rotary furnace body rotates to work, the heat preservation cavities are formed in the outer sides of the first furnace body, the second furnace body and the third furnace body, and the heat preservation effect is good. Due to the fact that the exteriors of the first furnace body, the second furnace body and the third furnace body are evenly filled with the high-temperature tail gas, the outer walls of the first furnace body, the second furnace body and the third furnace body can be heated, the total heat loss amount of the whole internal heat rotary furnace body is greatly reduced, the furnace temperature does not need to be kept by increasing much fuel gas, and production energy saving is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of internal heat rotary furnaces, and particularly relates to an internal heat rotary furnace with an energy-saving structure. Background Art

[0002] During the production of wood-based activated carbon by chemical methods, an internal heat rotary furnace is used. The working temperature of the internal heat rotary furnace is relatively high. However, due to the lack of an effective heat insulation structure, serious heat loss of the furnace body occurs, and additional energy supplementation is required to maintain the working temperature. The conventional countermeasure is to increase the heat insulation layer and use high-efficiency heat insulation materials such as ceramic fiber and perlite to reduce heat loss. However, there are also disadvantages in adopting the above countermeasures. It increases the complexity and cost of the device, is difficult to maintain and repair, increases the weight of the furnace body, and brings certain difficulties to the operation and maintenance inside the furnace. Therefore, we hope to design an internal heat rotary furnace with a novel structure to solve this problem. Summary of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide an internal heat rotary furnace with an energy-saving structure to solve the problems put forward in the above background art.

[0004] The utility model is realized through the following technical solutions: An internal heat rotary furnace with an energy-saving structure includes: a gas supply component and an internal heat rotary furnace body. The gas supply component is arranged on the left side of the internal heat rotary furnace body. The internal heat rotary furnace body includes furnace body one, furnace body two, and furnace body three.

[0005] The left end of furnace body one is connected to the gas nozzle of the gas supply component, and the right end of the gas nozzle of the gas supply component extends into the left end inside of furnace body one. The right end of furnace body one is fixedly connected to the left end of furnace body two through a connecting flange. The left end of furnace body three is fixedly connected to the right end of furnace body two through a connecting flange.

[0006] On the upper side of the right end of furnace body three, a feed hopper is arranged. In the middle of the right end of furnace body three, an exhaust gas pipe is arranged. The exhaust gas pipe is connected to the outer wall of furnace body three through a communicating pipe.

[0007] As a preferred implementation manner, furnace body one includes an outer wall, an inner wall, a support ring, and a refractory brick furnace body.

[0008] As a preferred implementation manner, a heat insulation layer is arranged on the inner wall of the outer wall, and a heat insulation cavity is arranged between the outer wall and the inner wall. The setting of the heat insulation cavity can distribute the discharged high-temperature exhaust gas on the surfaces of furnace body one, furnace body two, and furnace body three, which can greatly reduce the energy loss of furnace body one, furnace body two, and furnace body three and indirectly save energy.

[0009] As a preferred embodiment, a plurality of support rings are arranged at equal intervals inside the heat preservation cavity. The outer side of the support ring is fixedly connected to the inside of the outer wall, and the inner side of the support ring is fixedly connected to the outside of the inner wall.

[0010] As a preferred embodiment, each of the support rings is formed with a plurality of communicating holes distributed in a ring structure from left to right. A refractory brick furnace body is arranged inside the inner wall.

[0011] As a preferred embodiment, the internal structure of furnace body 1 is the same as that of furnace bodies 2 and 3.

[0012] As a preferred embodiment, the right end of furnace body 1 is communicated with the left end of furnace body 2 through a plurality of communicating pipes, and the right end of furnace body 2 is communicated with the left end of furnace body 3 through a plurality of communicating pipes. The arrangement of the communicating pipes can smoothly introduce the tail gas into the heat preservation cavity outside furnace bodies 1, 2 and 3 to realize tail gas heat preservation. It can not only utilize high-temperature waste gas, but also reduce the heat energy loss of furnace bodies 1, 2 and 3.

[0013] As a preferred embodiment, the communicating pipe includes a straight pipe, a bent pipe and a fixing plate. A bent pipe is arranged at each of the left end and the right end of the straight pipe, and a fixing plate with a heat-resistant sealing gasket is arranged at the lower end of each bent pipe.

[0014] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: by arranging a heat preservation cavity outside furnace bodies 1, 2 and 3, in actual use, the high-temperature tail gas in the tail gas exhaust pipe is sequentially introduced into furnace body 3, furnace body 2 and furnace body 1 through a plurality of communicating pipes installed on furnace bodies 1, 2 and 3 and the tail gas exhaust pipe. When the whole internal heat rotary furnace body rotates, since the outside of furnace bodies 1, 2 and 3 is uniformly filled with high-temperature tail gas, the outer walls of furnace bodies 1, 2 and 3 can be heated, thereby greatly reducing the high-temperature energy inside furnace bodies 1, 2 and 3 from radiating outward through the refractory brick furnace body, the inner wall and the outer wall, and greatly reducing the total heat loss of the whole internal heat rotary furnace body. Therefore, it is not necessary to increase a large amount of gas to maintain the furnace temperature, which helps to save energy in production;

[0015] By arranging the communicating pipes, the heat preservation cavities in the segmented furnace bodies 1, 2 and 3 can be effectively connected in series, so that the high-temperature tail gas can be smoothly input into the heat preservation cavities in furnace bodies 1, 2 and 3. Its relatively simple structure is easy to install and manufacture, reduces the cost required for equipment transformation, and can provide great help for energy saving of the internal heat rotary furnace body. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of an internal heat rotary furnace with an energy-saving structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structures of furnace body 1, furnace body 2, and furnace body 3 of an internal heat rotary furnace with an energy-saving structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of furnace body 1 of an internal heat rotary furnace with an energy-saving structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the connecting pipe structure of an internal heat rotary furnace with an energy-saving structure of the present invention.

[0021] In the figure, 100 - gas supply assembly;

[0022] 200 - internal heat rotary furnace body, 210 - furnace body 1, 211 - outer wall, 212 - insulation cavity, 213 - inner wall, 214 - refractory brick furnace body, 215 - support ring, 216 - communication hole, 220 - furnace body 2, 230 - furnace body 3, 240 - feed hopper, 250 - tail gas exhaust pipe, 260 - connecting pipe, 261 - elbow, 262 - straight pipe, 263 - fixing plate. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to Figures 1 to 4 , the present invention provides a technical solution: an internal heat rotary furnace with an energy-saving structure, including: a gas supply assembly 100 and an internal heat rotary furnace body 200. The gas supply assembly 100 is arranged on the left side of the internal heat rotary furnace body 200. The internal heat rotary furnace body 200 includes furnace body 1 210, furnace body 2 220, and furnace body 3 230;

[0025] The left end of the first furnace body 210 is connected to the gas nozzle of the gas supply assembly 100, and the right end of the gas nozzle of the gas supply assembly 100 extends into the left end of the first furnace body 210. The right end of the first furnace body 210 is fixedly connected to the left end of the second furnace body 220 through a connecting flange, and the left end of the third furnace body 230 is fixedly connected to the right end of the second furnace body 220 through a connecting flange;

[0026] On the upper side of the right end of the third furnace body 230, a feed hopper 240 is provided. In the middle of the right end of the third furnace body 230, a tail gas exhaust pipe 250 is provided. The tail gas exhaust pipe 250 is connected to the outer wall 211 of the third furnace body 230 through a connecting pipe 260.

[0027] Please refer to Figures 1 to 4 , the first furnace body 210 includes an outer wall 211, an inner wall 213, a support ring 215, and a refractory brick furnace body 214.

[0028] A heat preservation layer is provided on the inner wall 213 of the outer wall 211. A heat preservation cavity 212 is provided between the outer wall 211 and the inner wall 213. The setting of the heat preservation cavity 212 can distribute the discharged high-temperature tail gas on the surfaces of the first furnace body 210, the second furnace body 220, and the third furnace body 230, which can greatly reduce the energy loss of the first furnace body 210, the second furnace body 220, and the third furnace body 230 and indirectly save energy.

[0029] A plurality of support rings 215 are arranged at equal intervals inside the heat preservation cavity 212. The outer side of the support ring 215 is fixedly connected to the inside of the outer wall 211, and the inner side of the support ring 215 is fixedly connected to the outer side of the inner wall 213.

[0030] Each support ring 215 is formed with a plurality of communication holes 216 distributed in a circular structure from left to right. A refractory brick furnace body 214 is provided on the inner side of the inner wall 213.

[0031] The internal structure of the first furnace body 210 is the same as that of the second furnace body 220 and the third furnace body 230.

[0032] The right end of the first furnace body 210 is communicated with the left end of the second furnace body 220 through a plurality of connecting pipes 260. The right end of the second furnace body 220 is communicated with the left end of the third furnace body 230 through a plurality of connecting pipes 260. The setting of the connecting pipes 260 can smoothly introduce the tail gas into the heat preservation cavity 212 outside the first furnace body 210, the second furnace body 220, and the third furnace body 230 to realize tail gas heat preservation. It can not only utilize the high-temperature waste gas but also reduce the heat energy loss of the first furnace body 210, the second furnace body 220, and the third furnace body 230.

[0033] As the first embodiment of the present utility model, by providing a heat preservation cavity 212 on the outer sides of the first furnace body 210, the second furnace body 220, and the third furnace body 230, during actual use, the high-temperature tail gas in the tail gas exhaust pipe 250 is sequentially introduced into the third furnace body 230, the second furnace body 220, and the first furnace body 210 through a plurality of connecting pipes 260 installed on the first furnace body 210, the second furnace body 220, the third furnace body 230, and the tail gas exhaust pipe 250. When the entire internal heat rotary furnace body 200 is rotating, since the outer parts of the first furnace body 210, the second furnace body 220, and the third furnace body 230 are uniformly filled with high-temperature tail gas, the outer walls 211 of the first furnace body 210, the second furnace body 220, and the third furnace body 230 can be heated, thereby greatly reducing the high-temperature energy inside the first furnace body 210, the second furnace body 220, and the third furnace body 230 from radiating outward through the refractory brick furnace body 214, the inner wall 213, and the outer wall 211, greatly reducing the total heat loss of the entire internal heat rotary furnace body 200, and thus eliminating the need to increase a large amount of gas to maintain the furnace temperature, which helps to save energy in production.

[0034] Please refer to, 1, Figure 4 , the connecting pipe 260 includes a straight pipe 262, a bent pipe 261, and a fixing plate 263. A bent pipe 261 is provided at each of the left end and the right end of the straight pipe 262, and a fixing plate 263 with a heat-resistant sealing washer is provided at the lower end of each bent pipe 261.

[0035] As the second embodiment of the present utility model, by providing the connecting pipe 260, the heat preservation cavities 212 in the segmented first furnace body 210, the second furnace body 220, and the third furnace body 230 can be effectively connected in series, so that the high-temperature tail gas can be smoothly input into the heat preservation cavities 212 in the first furnace body 210, the second furnace body 220, and the third furnace body 230. Its relatively simple structure is easy to install and manufacture, reduces the cost required for equipment transformation, and can provide great assistance for energy conservation of the internal heat rotary furnace body 200.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An internal heat rotary furnace with an energy-saving structure, comprising: A gas supply assembly (100) and an internal heat rotary furnace body (200), characterized in that the gas supply assembly (100) is arranged on the left side of the internal heat rotary furnace body (200), and the internal heat rotary furnace body (200) comprises a furnace body 1 (210), a furnace body 2 (220) and a furnace body 3 (230); The left end of the furnace body 1 (210) is connected to the gas nozzle of the gas supply assembly (100), and the right end of the gas nozzle of the gas supply assembly (100) extends to the inside of the left end of the furnace body 1 (210), the right end of the furnace body 1 (210) is fixedly connected to the left end of the furnace body 2 (220) through a connecting flange, and the left end of the furnace body 3 (230) is fixedly connected to the right end of the furnace body 2 (220) through a connecting flange; A feed hopper (240) is arranged on the upper side of the right end of the furnace body three (230), and a tail gas exhaust pipe (250) is arranged in the middle of the right end of the furnace body three (230). The tail gas exhaust pipe (250) is connected to the outer wall (211) of the furnace body three (230) through a connecting pipe (260).

2. The internal heat rotary furnace with energy-saving structure as claimed in claim 1, characterized in that: The furnace body (210) comprises an outer wall (211), an inner wall (213), a support ring (215) and a refractory brick furnace body (214).

3. The internal heat rotary furnace with energy-saving structure as claimed in claim 2, characterized in that: The inner wall (213) of the outer wall (211) is provided with a heat-insulating layer, and a heat-insulating cavity (212) is provided between the outer wall (211) and the inner wall (213).

4. The internal heat rotary furnace with energy-saving structure as claimed in claim 3, characterized in that: A plurality of support rings (215) distributed at equal intervals are arranged inside the heat preservation cavity (212); the outer side of the support ring (215) is fixedly connected to the inside of the outer wall (211); and the inner side of the support ring (215) is fixedly connected to the outer side of the inner wall (213).

5. The internal heat rotary furnace with energy-saving structure as claimed in claim 4, characterized in that: Each of the support rings (215) penetrates from left to right to form a plurality of communicating holes (216) distributed in an annular structure, and a refractory brick furnace body (214) is arranged on the inner side of the inner wall (213).

6. The internal heat rotary furnace with energy-saving structure as claimed in claim 5, characterized in that: The internal structure of the furnace body 1 (210) is the same as the internal structure of the furnace body 2 (220) and the furnace body 3 (230).

7. The internal heat rotary furnace with energy-saving structure as claimed in claim 6, characterized in that: The right end of the furnace body 1 (210) is connected to the left end of the furnace body 2 (220) through a plurality of connecting pipes (260), and the right end of the furnace body 2 (220) is connected to the left end of the furnace body 3 (230) through a plurality of connecting pipes (260).

8. The internal heat rotary furnace with energy-saving structure as claimed in claim 7, characterized in that: The connecting pipe (260) comprises a straight pipe (262), a curved pipe (261) and a fixing plate (263). A curved pipe (261) is provided at the left end and the right end of the straight pipe (262), respectively. A fixing plate (263) with a heat-resistant sealing gasket is provided at the lower end of each curved pipe (261).

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